Heald and shuttle-box operating mechanism of looms.



D. NICHOLS. HEALD AND SHUTTLE BOX OPERATING MECHANISM OF LOOMS.APPLICATION FILED SEPT. 5; 1908.

978,329. Patented Dec; 13, 1910.

6 SHEETS-SHEET 1.

THE non/us PE rsres cm, WASNINGYON, c

. D. NICHOLS. HEALD AND SHUTTLE BOX OPERATING MECHANISM OF LOOMS.

APPLICATION FILED SEPT. 6, 1908.

Patented Dec. 13, 1910.

a SHEETS-SHEET 2.

THE NunRls PETERS co, WASHINGTON, n. c.

D. NICHOLS.

HEALD AND SHUTTLE BOX OPERATING MECHANISM OF LOOMS.

APPLICATION FILED SEPT. 5, 190B.

Patented Dec. 13, 1910,

6 SHEETS-SHEET 3.

as ca. WASHINGTON- n c.

D. NICHOLS. HEALD AND SHUTTLE BOX OPERATING MECHANISM OF LOOMS.

APPLIOATION FILED SEPT. 5, 1908.

Patented Dec. 13, 1910.

6 SHEETS-SHEET 4.

Qmm ys THE NORRIS Psrsns ca. WASHINGTON, o. c.

D. NICHOLS. HEALD AND SHUTTLE BOX OPERATING MECHANISM OF LOOMS.APPLICATION FILED SBPT.5, 1908.

978,329, Patented Dec. 13, 1910.

6 SHEETS-SHEET 5.

D. NICHOLS.

HEALD AND SHUTTLE BOX OPERATING MECHANISM OF LOOM'S.

APPLICATION FILED SEPT. 6, I908.

Patented Dec. 13, 1910.

6 SHEETSSHEET 8.

UNITE STATES PATENT OFFICE.

DAVID NICHOLS, OF SHIPLEY, ENGLAND, ASSIGNOR 'IO GEORGE HODGSON LIMITED,OF

BRADFORD, ENGLAND.

HEALD AND SHUTTLE-BOX OPERATING MECHANISM OF LOOMS.

Specification of Letters Patent.

Patented Dec. 13, 1910.

Application filed September 5, 1908. Serial No. 451,847.

To all whom it may concern:

Be it known that I, DAVID NICHOLS, a subject of the King of GreatBritain, and resident of 80 Manor Lane, Shipley, in the county of York,England, have invented certain new and useful Improvements Relating toHeald and Shuttle-Box Operating Mechanisms of Looms, of which thefollowing description, together with the accompanying sheets ofdrawings, is a specification.

It has reference to the class of looms wherein dobby or heald operatingmechanism, consisting of toothed-crank wheels actuated by partly tootheddrums, is made use of, the same looms having shuttle-boxes of the typeknown as drop-boxes or those having shuttle boxes which have rising anddescending motions transmitted to them, and the object of this inventionis to so construct and arrange certain parts in connection with theheald operating mechanism of the class referred to and the patternsurface which controls same, that shuttle-box operating mechanismactuated from or by one of the main shafts of the loom such as mechanismof the type described in British Patent specifications No. 16110 of 1886and No. 18037 of 1893 may be used in connection therewith and by havingits pattern surface mechanism so constructed and connected to that whichcontrols the heald operating mechanism that the one may be kept inunison or concert with the other whether the loom is working in theordinary manner to carry out the process of weaving or whether it ismoved to carry out the process of lagging back.

Hitherto in looms provided with toothed crank wheel dobbies, certain ofthe dobby crank wheels have been used for the purpose of raising andlowering the shuttle boxes into position. This arrangement putsconsiderable stress on such crank wheels and their connections andcauses excessive wear and liability to breakage of parts and also puts aconsiderable strain upon the weaver while lagging back by hand.

According to the improvements described in the specifications of BritishPatents Nos. 16018 and 16019 of 1907 the part of the dobby mechanismwhich is used in connection with the shuttle boxes is only made use ofto put separate shuttle box operating mechanism into and out of actionso that in lagging back the weaver is relieved of the strain of movingthe shuttle boxes and the wear and strain on the parts is reduced, whileat the same time the various parts are so arranged that the healdpattern mechanism and the shuttle box and picking pattern mechanism andif desired the take up motion, shall rotate in unison in eitherdirection preserving their proper relation to one another whether thedobby mechanism is connected with or disconnected from the loom.

According to the present invention I utilize certain of the toothedcrank wheels of the dobby for the purpose of putting the shuttle boxoperatin mechanism into and out of action and w iile obtaining theadvantages above mentioned I also secure that the putting of the shuttlebox operating mechanism into and out of action shall be performedpositively, and as the result of my invention a more etlicient machineis obtained capable of working at a greater speed.

In the accompanying sheets of drawings which are illustrative of myinvention as applied to a loom of the kind described provided with theshuttle box operating mechanism described in British specifications Nos.16110 of 1886 and No. 18037 of 1803 Figure 1 is a back elevation ofsullicient of the dobby side of a loom to show the construction andarrangement of same in accordance with my invention. Fig. 1 is a similarview to Fig. 1 but illustrates the other or opposite side of the loom.Fig. 2 is front elevation of sufficient of one end of a loom toillustrate the application of my invention. Fig. 3 is an end elevationof the parts shown by Fig. 2. Fig. 41 is an elevation illustrating thearrangement of certain parts hereinafter described. Fig. 5 is a plan ofcertain of the parts shown by Fig. 3 but with their relative positionsaltered. Fig. 6 is a perspective view showing the relative positions ofthe two sets of teeth on a segment drum. Fig. 7 is a perspective viewshowing the relative positions of the two pattern cylinders as arrangedin accordance with my invention. Figs. 8 and 9 are front and endelevations of parts hereinafter referred to.

In carrying out my invention I make use of the dobby mechanism whereinthe partly the rising and descending movements of the healds I employcertain crank wheels 4 (shown by Fig. 1) which are carried by thevibrator levers 6 to transmit motion by connecting rods 7, levers 8,rods 9, and forked levers 10 to the continuously rotating partly toothedwheels 11, which they slide upon a sleeve mounted on the shaft 12 inorder to place same into and out of "gear with the crank Wheels 13, 13*,which latter by the rods 1%, 1a, and box lever 15, effect the rising andfalling movements of the shuttle-boxes 16. Thus the pattern surface 17on the barrel 18 is brought into use to control or effect the movementsof the healds through the heald or jack levers 20 while the patternsurfaces 21 are used to control the motion of the shuttle-boxes 16, butonly for the purpose as before stated, of putting the wheels 11, and 13,13 positively into and out of gear so that the looms prime motor shaftis thereby brought into use to effect the movements of said shuttleboxes. The shaft 60 is coupled to (so as to positively rotate) a sleeveon the shaft 12 by the gearing wheels 61, 62 and 63 to the latter ofwhich the sleeve is coupled in manner well known. For actuating theshuttle boxes 16 on the opposite end or side of the loom to that onwhich the dobby mechanism is mounted, another box lever 15 is employedas are also rods 14, 14 crank wheels 13, 13 partly toothed wheel 11,forked levers 10 and rods 9 (all of which are mounted on said end of theloom) and these are coupled to levers 8 which are through the connectingrods 7 actuated as before stated by the crank wheels 4 in the dobbymechanism. Similar connecting devices are also used to actuate theforked lever 24, which engages the devices for effecting the changes inthe picking or shuttle actuating mechanism in the well known manner.Since the toothedcrank wheels 4 are used for thus governing the actionsof the shuttle boxes 16, while the toothed crank wheels e (see Fig. 4)are employed in well'known manner to actuate the healds by operating thejack-levers 20, it is obvious that such toothed-cranks 4 must beactuated at a different time to those 4? which are used for operatingthe. healds. To effect this difference in time of action I adjust thoseparts 2 and 3 of the segment drums which operate them to have theirteeth I) out of alinement with the teeth 0 of the other parts 2 and 3 ofthe said drum which actuate the jacks 20. This alteration in therelative positions of the two sets of teeth 7) and .0 may extend to thefull limit in which positions one set will be in working position whilethe other is traveling through the inoperative part of its path ofmotion as shown by Figs. 5 and 6, or such adjustment of the two sets maybe carried out to any required extent less than said extreme as occasionmay necessitate.

To enable the patternsurface 21 (which is carried by the pattern barrel22) to be adjusted to actuate the crank wheels 4 at the proper timerelatively with the pattern surface 17 (carried by the barrel 18) whichactuates the crank wheels 1 the pattern barrel 22 is made so that it maybe adjusted and secured in any desired position on the axial shaft ofthebarrel 18 as shown by Fig. 7. And since it is usual to have the patternbarrels for the type of dobby mechanism herein employed and referred to,actuated continuously and not intermittently nor at one part quicker andat another part slower in any given revolution, it willbe seen that theadjustability of one pattern barrel, as the barrel 22 relatively withthe other 18 is desirable in order that each may act at the requiredtime. However should it be desired to actuate the barrel 22 inintermittent stages then I may mount it loosely upon the shaft of thebarrel 18 or upon a separate shaft and transmit motion from the barrel18 or its shaft to the barrel 22 by any known means or by the wheels 49and 19 shaft 49 and pegwheel 4:6 to the star wheel 47 which is secured,so as to transmit motion to said barrel 22 as shown by Figs. 8 and 9 andas described in British specification No. 16018 of 1907.

In order that the toothed-cranks 1 for governing the shuttle-boxes 16 aswell as those a which actuate the jack levers 20 (and which are inaccordance with my arrangement above described carried out at differenttimes or periods) may be locked in gear with their respective-drums 2, 3and 2 3 in manner well understood, I arrange the locking bar 9 foracting in conjunction with the levers 6 to lock the crank-wheels 4, tobe separate from the bar it for acting in like manner with the levers 6to lock the crank wheels 1 and I preferably mount the cam 72 and springm for actuating the bar 9 on one side of the machine while I mount thecam n on the other side thereof so that it and its spring 79 may operatethe bark quite independently of the bar 9, thus the adjustment of theseindependent locking mechanisms may be effected as occasion re-,

I have described my invention with reference to a loom provided withshuttle box operating mechanism such as is described in Britishspecifications No. 16110 of 1886 and No. 18037 of 1898 but it is obviousthat any form of shuttle box operating mechanism which is driven fromone of the main shafts of the loom and is putinto and out of action bymeans of a sliding clutch device or its equivalent may be used withoutdeparting from my invention.

Such being the nature and object of my invention what I claim is 1. Animprovement in looms comprising mechanisn'i for operating the shuttleboxes, mechanism for operating the healds, and mechanism for controllingsaid shuttle box operating mechanism and said heald operating mechanismcomprising independent crank wheels provided with teeth, partiallytoothed drums for rotating said crank wheels, vibrator levers forsupporting said crank wheels, independent pattern mechanisms foractuating said vibrator levers, the pattern mechanism for the dobbyactuating crank wheels acting at a different time from the patternmechanism for actuating the shuttle boxes, and independent lockingdevices for said vibrator levers.

2. An improvement in looms comprising mechanism for operating theshuttle boxes, mechanism for operating the healds, and mechanism forcontrolling said shuttle box W operating mechanism and said healdoperating mechanism, comprising independent crank wheels provided withteeth, partially toothed drums for rotating said crank wheels, vibratorlevers for supporting said crank wheels, independent pattern barrels forcontrolling the operation of the respective vibrator levers of saiddobby and shuttle mechanism respectively, said barrels being relativelyadjustable, and independent locking devices for said vibrator lovers.

3. In a loom a partly toothed drum, toothed cranlewlwels, lever orequivalent means for connecting these crank wheels to the healds,another partly toothed drum in alineruent with the former and arrangedto act at the opposite time thereto, toothed crank wheels and lover orequivalent connections to couple these latter toothed crank wheels toput the shuttle-box mechanism into and out of action, two patternbarrels mounted in alinement with each other the one being adjusted tocontrol the movement of the healds while the other is adjusted at adifferent time to control the movements of the shuttle boxes, twolocking bars, one for locking the crank wheels which move the healdswhile the other acts at a different time and locks those which put thebox op erating mechanism into and out of action, two cams and theirlever and spring connections for operating said locking bars atditl'erent times substantially as herein specified.

In testimony whereof I have hereunto attixed my signature in thepresence of two witnesses.

DAVID NICHOLS. \Vitnesses Faun IilAMMOND, SAMUEL Her.

